R&S
®
CMW 500 Annexes
Comparison with R&S CMU
Operating Manual 1202.3986.32 – 03 420
Addressed Commands
Addressed commands are encoded in the range 00 through 0F hex. They are only
effective for instruments addressed as listeners.
Command QuickBASIC
command
Effect on the instrument
GET
(Group
Execute
Trigger)
IBTRG
(device%)
Triggers a previously active device function (e.g. a sweep). The effect of the
command is the same as with that of a pulse at the external trigger signal
input.
GTL
(Go to
Local)
IBLOC
(device%)
Transition to the "Local" state (manual control).
PPC
(Parallel
Poll
Configure)
IBPPC
(device%,
data%)
Configures the instrument for parallel poll. Additionally, the QuickBASIC
command executes PPE/PPD.
SDC
(Selected
Device
Clear)
IBCLR
(device%)
Aborts the processing of the commands just received and sets the command
processing software to a defined initial state. Does not change the instrument
setting.
11.1.3.3 Instrument Messages
Instrument messages (commands) are transferred on the data lines of the GPIB bus
while the ATN line is not active. ASCII code is used.
Structure and syntax of the instrument messages are described the Command
Reference chapter. The chapter also provides a detailed description of all messages
implemented by the tester.
11.2 Comparison with R&S CMU
The R&S CMW 500 wideband radio communication tester and the R&S CMU 200
Universal Radio Communication Tester have part of their functionality in common. The
enhanced flexibility of the R&S CMW 500 entails a different SCPI command structure,
so that it is not possible to migrate remote program scripts without prior modification.
The following sections give hints for the transcription of R&S CMU 200 programs for
use on the R&S CMW 500. Please note the additional hints for program upgrades in
order make full use of the measurement functionality of your R&S CMW 500.
Segmentation, addressing and resource management
Connection control
Generator control
Measurement control
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